diff --git a/dwm.c b/dwm.c
index 5b2c536..500c71b 100644
--- a/dwm.c
+++ b/dwm.c
@@ -186,6 +186,7 @@ static void attach(Client *c);
 static void attachaside(Client *c);
 static void attachstack(Client *c);
 static void buttonpress(XEvent *e);
+static void centeredmaster(Monitor *m);
 static void checkotherwm(void);
 static void cleanup(void);
 static void cleanupmon(Monitor *mon);
@@ -2069,6 +2070,61 @@ col(Monitor *m) {
 	}
 }
 
+void
+centeredmaster(Monitor *m)
+{
+	unsigned int i, n, h, mw, mx, my, oty, ety, tw;
+	Client *c;
+
+	/* count number of clients in the selected monitor */
+	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
+	if (n == 0)
+		return;
+
+	/* initialize areas */
+	mw = m->ww;
+	mx = 0;
+	my = 0;
+	tw = mw;
+
+	if (n > m->nmaster) {
+		/* go mfact box in the center if more than nmaster clients */
+		mw = m->nmaster ? m->ww * m->mfact : 0;
+		tw = m->ww - mw;
+
+		if (n - m->nmaster > 1) {
+			/* only one client */
+			mx = (m->ww - mw) / 2;
+			tw = (m->ww - mw) / 2;
+		}
+	}
+
+	oty = 0;
+	ety = 0;
+	for (i = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
+	if (i < m->nmaster) {
+		/* nmaster clients are stacked vertically, in the center
+		 * of the screen */
+		h = (m->wh - my) / (MIN(n, m->nmaster) - i);
+		resize(c, m->wx + mx, m->wy + my, mw - (2*c->bw),
+		       h - (2*c->bw), 0);
+		my += HEIGHT(c);
+	} else {
+		/* stack clients are stacked vertically */
+		if ((i - m->nmaster) % 2 ) {
+			h = (m->wh - ety) / ( (1 + n - i) / 2);
+			resize(c, m->wx, m->wy + ety, tw - (2*c->bw),
+			       h - (2*c->bw), 0);
+			ety += HEIGHT(c);
+		} else {
+			h = (m->wh - oty) / ((1 + n - i) / 2);
+			resize(c, m->wx + mx + mw, m->wy + oty,
+			       tw - (2*c->bw), h - (2*c->bw), 0);
+			oty += HEIGHT(c);
+		}
+	}
+}
+
 void
 tcl(Monitor * m) {
     int x, y, h, w, mw, sw, bdw;